Diesel Data: Automotive Repair

Trouble Diagnosis For Abnormal Pressure

TROUBLE DIAGNOSIS FOR ABNORMAL PRESSURE

NOTE:
Normal pressure values on high side and low side in the following table are measured when the ambient temperature is about 30 °C (86 °F). As normal pressure values on high side and low side vary depending on the ambient temperature, be sure to perform the following steps first when diagnosing troubles.
1. Measure the ambient temperature and using that value, read the normal value from the graph given in Step 9 of A/C System Performance Inspection A/C System Performance Inspection.
2. Put that value in place of the normal pressure in the following table.